diff options
Diffstat (limited to 'ganv/canvas.h')
| -rw-r--r-- | ganv/canvas.h | 129 |
1 files changed, 69 insertions, 60 deletions
diff --git a/ganv/canvas.h b/ganv/canvas.h index a3444dc..02219c1 100644 --- a/ganv/canvas.h +++ b/ganv/canvas.h @@ -60,7 +60,7 @@ struct _GanvCanvasClass { GtkLayoutClass parent_class; /* Reserved for future expansion */ - gpointer spare_vmethods [4]; + gpointer spare_vmethods[4]; }; GType ganv_canvas_get_type(void) G_GNUC_CONST; @@ -94,6 +94,28 @@ GanvCanvas* ganv_canvas_new(double width, double height); /** + * ganv_canvas_clear: + * Remove all items from the canvas. + */ +void +ganv_canvas_clear(GanvCanvas* canvas); + +/** + * ganv_canvas_empty: + * + * Return value: True if there are no items on the canvas. + */ +gboolean +ganv_canvas_empty(const GanvCanvas* canvas); + +/** + * ganv_canvas_resize: + * Resize the canvas to the given dimensions. + */ +void +ganv_canvas_resize(GanvCanvas* canvas, double width, double height); + +/** * ganv_canvas_root: * @canvas: A canvas. * @@ -158,7 +180,7 @@ ganv_canvas_set_center_scroll_region(GanvCanvas* canvas, * Returns: Whether the scroll region is being centered in the canvas window. */ gboolean -ganv_canvas_get_center_scroll_region(GanvCanvas* canvas); +ganv_canvas_get_center_scroll_region(const GanvCanvas* canvas); /** * ganv_canvas_scroll_to: @@ -187,21 +209,6 @@ void ganv_canvas_get_scroll_offsets(const GanvCanvas* canvas, int* cx, int* cy); /** - * ganv_canvas_get_item_at: - * @canvas: A canvas. - * @x: X position in world coordinates. - * @y: Y position in world coordinates. - * - * Looks for the item that is under the specified position, which must be - * specified in world coordinates. - * - * Returns: (transfer none): The sought item, or NULL if no item is at the - * specified coordinates. - */ -GanvItem* -ganv_canvas_get_item_at(GanvCanvas* canvas, double x, double y); - -/** * ganv_canvas_w2c_affine: * @canvas: A canvas. * @matrix: An affine transformation matrix (return value). @@ -293,11 +300,19 @@ ganv_canvas_world_to_window(GanvCanvas* canvas, double* winy); /** - * ganv_canvas_resize: - * Resize the canvas to the given dimensions. + * ganv_canvas_get_item_at: + * @canvas: A canvas. + * @x: X position in world coordinates. + * @y: Y position in world coordinates. + * + * Looks for the item that is under the specified position, which must be + * specified in world coordinates. + * + * Returns: (transfer none): The sought item, or NULL if no item is at the + * specified coordinates. */ -void -ganv_canvas_resize(GanvCanvas* canvas, double width, double height); +GanvItem* +ganv_canvas_get_item_at(GanvCanvas* canvas, double x, double y); /** * ganv_canvas_get_edge: @@ -311,6 +326,15 @@ ganv_canvas_get_edge(GanvCanvas* canvas, GanvNode* head); /** + * ganv_canvas_remove_edge: + * + * Remove @edge from the canvas. + */ +void +ganv_canvas_remove_edge(GanvCanvas* canvas, + GanvEdge* edge); + +/** * ganv_canvas_remove_edge_between: * * Remove the edge from @tail to @head if one exists. @@ -321,14 +345,6 @@ ganv_canvas_remove_edge_between(GanvCanvas* canvas, GanvNode* head); /** - * ganv_canvas_get_default_font_size: - * - * Get the default font size in points. - */ -double -ganv_canvas_get_default_font_size(const GanvCanvas* canvas); - -/** * ganv_canvas_get_direction: * * Return the direction of signal flow. @@ -345,14 +361,6 @@ void ganv_canvas_set_direction(GanvCanvas* canvas, GanvDirection dir); /** - * ganv_canvas_clear_selection: - * - * Deselect any selected items on the canvas. - */ -void -ganv_canvas_clear_selection(GanvCanvas* canvas); - -/** * ganv_canvas_arrange: * * Automatically arrange the canvas contents. @@ -374,7 +382,7 @@ ganv_canvas_export_dot(GanvCanvas* canvas, const char* filename); * Returns: true iff ganv is compiled with sprung layout support. */ gboolean -ganv_canvas_supports_sprung_layout(GanvCanvas* canvas); +ganv_canvas_supports_sprung_layout(const GanvCanvas* canvas); /** * ganv_canvas_set_sprung_layout: @@ -392,7 +400,7 @@ ganv_canvas_set_sprung_layout(GanvCanvas* canvas, gboolean sprung_layout); * Return true iff the canvas is locked and nodes may not move. */ gboolean -ganv_canvas_get_locked(GanvCanvas* canvas); +ganv_canvas_get_locked(const GanvCanvas* canvas); /** * ganv_canvas_for_each_node: @@ -417,14 +425,6 @@ ganv_canvas_for_each_selected_node(GanvCanvas* canvas, void* data); /** - * ganv_canvas_empty: - * - * Return value: True if there are no items on the canvas. - */ -gboolean -ganv_canvas_empty(const GanvCanvas* canvas); - -/** * ganv_canvas_for_each_edge: * @canvas: The canvas. * @f: (scope call): A function to call on every edge on @canvas. @@ -483,18 +483,19 @@ ganv_canvas_for_each_selected_edge(GanvCanvas* canvas, void* data); /** - * ganv_canvas_clear: - * Remove all items from the canvas. + * ganv_canvas_select_all: + * Select all items on the canvas. */ void -ganv_canvas_clear(GanvCanvas* canvas); +ganv_canvas_select_all(GanvCanvas* canvas); /** - * ganv_canvas_select_all: - * Select all items on the canvas. + * ganv_canvas_clear_selection: + * + * Deselect any selected items on the canvas. */ void -ganv_canvas_select_all(GanvCanvas* canvas); +ganv_canvas_clear_selection(GanvCanvas* canvas); /** * ganv_canvas_get_zoom: @@ -520,6 +521,21 @@ void ganv_canvas_set_zoom(GanvCanvas* canvas, double zoom); /** + * ganv_canvas_zoom_full: + * Zoom so all canvas contents are visible. + */ +void +ganv_canvas_zoom_full(GanvCanvas* canvas); + +/** + * ganv_canvas_get_default_font_size: + * + * Get the default font size in points. + */ +double +ganv_canvas_get_default_font_size(const GanvCanvas* canvas); + +/** * ganv_canvas_get_font_size: * Get the current font size in points. */ @@ -534,13 +550,6 @@ void ganv_canvas_set_font_size(GanvCanvas* canvas, double points); /** - * ganv_canvas_zoom_full: - * Zoom so all canvas contents are visible. - */ -void -ganv_canvas_zoom_full(GanvCanvas* canvas); - -/** * ganv_canvas_get_move_cursor: * Return the cursor to use while dragging canvas objects. */ |